Neck warmer



FIG. 1 is a perspective view of a neck warmer showing our new design.

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The broken line showing of a person is included for the purpose of illustration only and forms no part of the claimed design. 

The ornamental design of a neck warmer, as shown and described. 